| Article ID: | iaor201112184 |
| Volume: | 33 |
| Issue: | 2 |
| Start Page Number: | 43 |
| End Page Number: | 45 |
| Publication Date: | Jun 2011 |
| Journal: | Teaching Statistics |
| Authors: | Orris J B |
| Keywords: | statistics: general |
This paper shows how the variance and standard deviation can be represented graphically by looking at each squared deviation as a graphical object – in particular, as a square. A series of displays show how the standard deviation is the size of the average square.